If one or more of the self test of the tinySA fails AND you did NOT buy from one of the safe sellers (see wiki) you can do the following:

If the Attenuator test (test 12 in the latest FW) fails follow this guide in the wiki:?

If the serial number at the back of your tinySA starts with "AD" you have a clone. Complain and get a refund.
If the text next to the high input connector is "HICH" you have a clone. Complain and get a refund.

For other failures make a photo of the front and back of the tinySA and a photo or screen capture of the failing self test such that it is possible to read the text on the screen and post a message with the pictures.

?Received Tiny SA from R&L last week. After calibration only attenuator test 11 failed.
Did manual 30mhz attenuator test as suggested.
Came with v 1.1-52 Dec 14 2020. Not updated

1 db step failed at 4 db at 28.9db
Started with 25.4db fro 0 to 3db.
Noise floor did creep up as value increased.

Was hoping a newer version may fix it but not tried yet. Generated some test signals from an a calibrated Aeroflex service monitor? and mos levels appeared within 1 db or so at different levels, I think I had manual atten at 0 when I did most of those. Only at higher levels -10 to -5db was accuracy on screen varying 5db or more and at very weal levels near -100db and at frequency extremes of high and low inputs.
I can swap with vendor if needed.

? ?Thank You
? ?Tom

It would help us if you could install the a new FW. V1.1-77 and run an additional test

Connect high and low with SMA cable
Set CAL OUTPUT to 30MHz
Start MEASURE/MORE/LINEAR

A green line should appear and the attenuation will start at 30dB and step by step decrease till zero
When completed (will take some time) with a good attenuator the screen should look like this
The line does not have to be perfectly flat.


Please post a picture of the screen with your tinySA


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开云体育

Eric:
The test on my unit seems to start at 29dB of attenuation.

charlie

Yes, that is good
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? ? ? ? ? ? ?Erik:??

So I upgraded to 1.1-77. Had to manually install drivers from win64 drivers folder.? Ran 30db test twice and it failed badly 4 to 5 db variation. I did a recalibrate after firmware update and had saved reference info and checking found it still the same. Looks like I ned to return this to R&L for exchange. I notified them a few days ago that I was testing further and would advise.

? ? ? ? Tom
? ? ? ? KA1GXR

Tom,

This is a very clear failure of the 4dB step of the built in attenuator. Agree you should ask for an exchange. Refer to this measurement as evidence
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On Thu, Jan 21, 2021 at 08:47 PM, Tom D'Orsay wrote:

Ran 30db test twice and it failed badly 4 to 5 db variation.

Tom?
What type of sources have used in combination with the tinySA?
An sources that generate possibly more than +10dB?
?
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? ? ? ? ? ? ? ? ? New replacement Tinysa received today. Passed all self test before and after calibration run. Upgraded to 1.1-77. Ran 30db linearity test. Passed OK Screen capture attached.?
Very good service from R&L to resolve this.

? ? ? ? ? ? ? ?Tom
? ? ? ? ? ? ? ?KA1GXR

On Tue, Jan 26, 2021 at 03:29 PM, Tom D'Orsay wrote:

Passed OK Screen capture attached.?

Looks good.
?
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Hi,

I just received a second tinySA and it is failing two self-tests.? It appears to be an authentic unit.

I upgraded to V1.1-77 on both of my units.

I performed the Level Calibration and then executed Self Test.? Here are the errors:

Test 5 Above Critical



Test 7 Stopband Fail



Otherwise, ST is okay.



Did attenuator test and that seems okay.



Thank you,

Robert, WA2T

Please disregard the version screen that somehow got attached to my posting.? I had something odd going on with upgrades and both units were showing version V1.1-59 even though I was using V1.1-77 for the upgrade.? I redownloaded the file and made sure to use that one and both my units are now at V1.1-77 as indicated by the version screen.? Thanks.

A data point.? I happened to notice that the Reference Level (set to auto) is going to +10 on the new (problem) unit and to 0 on the properly working unit.? Could this be a clue?

One other thing.? The new (problem) unit seems "dirty" when the low and high inputs are connected together (no cal signal turned on).? My original has just two little spurs while this one has a bunch.? Sorry for the barrage of posts.? Hope the info will help to get to the bottom of the issue.

Robert,
I'm not sure this is a genuine tinySA
Can you post photos of the sticker on the back and the PCB?

Seems authentic.

Sorry, but this is an illegal clone. No doubt.
A very nice visual copy, but not at the right performance.

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Thank you Erik!

Hello Eric,

How can you tell from the picture that it a clone ?

Vidas

As the cloners are probably reading these messages I prefer not to explain how I know a product is a clone.
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